Understand the source comparison
VIP for MCAS / CIRS Researchers: Quality Comparison
503B-Registered Supplier HPLC-verified ≥98% per batch <1.0 EU/mg documented on CoA Full synthesis batch tracking Required for reproducible research. Only option with verifiable quality control Generic Peptide Vendor Self-reported, no third-party verification N
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- 503B-Registered Supplier
- HPLC-verified ≥98% per batch
- <1.0 EU/mg documented on CoA
- Full synthesis batch tracking
- Required for reproducible research. Only option with verifiable quality control
- Generic Peptide Vendor
- Self-reported, no third-party verification
- Not disclosed or tested
- No batch-level records
- High risk of contamination or incorrect sequencing. Inconsistent results across orders
- Overseas Manufacturer
- Variable, often 90–95% actual purity
- Often exceeds 5.0 EU/mg
- No English-language CoA
- Endotoxin contamination common. Triggers inflammatory responses that confound MCAS/CIRS models